The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 2018
Filed:
Jan. 14, 2015
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Yasuhito Nakakuki, Atsugi, JP;
Masaki Kodato, Sagamihara, JP;
Kazuya Yamano, Yamato, JP;
Yoshitaka Sugiyama, Machida, JP;
Tsukasa Miyajima, Atsugi, JP;
Masahiko Ushimura, Kanagawa, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;
Abstract
A transverse gradient current Ic which is larger than a basic assist current Ib is outputted, as a current command value, to motor driving section when direction correspondence judgment sectionjudges that rotation directions of first and second rotation angle signals θand θcorrespond with each other, when an advancing phase judgment sectionjudges that a phase of the second rotation angle signal is advanced, and when a phase variation judgment sectionjudges that a phase advance state of the second rotation angle signal θcontinues.